title: Low-cost vibration sensor based on dual fiber Bragg gratings and light intensity measurement.
abstract: A vibration monitoring system based on light intensity measurement has been constructed, and the designed accelerometer is based on steel cantilever frame and dual fiber Bragg gratings (FBGs). By using numerical simulations for the dual FBGs, the dependence relationship of the area of main lobes on the difference of initial central wavelengths is obtained and the most optimal choice for the initial value and the vibration amplitude of the difference of central wavelengths of two FBGs is suggested. The vibration monitoring experiments are finished, and the measured data are identical to the simulated results.
authors.forename: Xueqing
authors.initials: X
authors.lastname: Gao
authors.forename: Yongjiao
authors.initials: Y
authors.lastname: Wang
authors.forename: Bo
authors.initials: B
authors.lastname: Yuan
authors.forename: Yinquan
authors.initials: Y
authors.lastname: Yuan
authors.forename: Yawen
authors.initials: Y
authors.lastname: Dai
authors.forename: Gang
authors.initials: G
authors.lastname: Xu